This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX145, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI32 Standard Air Cylinder SI32AX145
The AirTAC SI32 Standard Air Cylinder SI32AX145 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 145mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX145, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke145 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX145
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32AX145
The AirTAC SI32AX145 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 145mm stroke. Delivering 402N push force at 0.5MPa, it features a Ø12mm rod, M10x1.25 thread, and a G1/8 port. The direct replacement is the SAI32AX145, which matches the original interface, bore, stroke, force, port, and mounting.
This SKU has no magnet (-S) and cannot take a sensor; the rod is SUS420J2 stainless steel (-A). The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI32 Standard Air Cylinder SI32AX145 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX145 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX145 |
| Bore size | Ø32 mm |
| Stroke | 145 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32AX145 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32AX145 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32AX145
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×145 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI32 Standard Air Cylinder SI32AX145 Is Used
Compact Part Ejection
Uses the 402N push force at 0.5MPa to eject small machined components from a fixture without damaging the surface.
Lightweight Sorting
Cycles at 30-800mm/s to deflect lightweight plastic parts down a sorting chute in high-speed packaging lines.
Corrosive Test Chambers
The SUS420J2 stainless rod (-A option) actuates sample trays inside humid or mildly corrosive environmental test cabinets.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX145 with the SAI32AX145
To replace the SI32AX145, order the SAI32AX145. Verify the ISO 15552 mounting interface, 145mm stroke, G1/8 port, and SUS420J2 stainless rod (-A). Note this non-magnetic SKU cannot accept a switch. If sizing up, the 40mm bore offers 628N push at 0.5MPa; sizing down is not available. For strokes over 300mm, use guide rails to prevent rod bending. A plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX145
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32AX145 FAQ
Yes, the SI32AX145 is discontinued. The direct replacement is the SAI32AX145. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 145mm stroke, force, G1/8 port, and mounting interface.
The G1/8 port bore delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. The rod is Ø12mm with an M10x1.25 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX145
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX145 replacement — usually within 7-8 hours.